3
Ruby
Diamond
Sapphire

import java.util.Scanner;

public class GemStones {

    private int numOfStones;
    private String[] gemArray;

    public void solve() throws Exception{

        Scanner in = new Scanner(System.in);

        //Reading the integer
        numOfStones = Integer.parseInt(in.nextLine());
        //in.nextLine();
        System.out.println(numOfStones);


        //reading the strings
        for(int i=0;i<numOfStones;i++){
            gemArray[i] = in.nextLine();
            System.out.println(gemArray[i]);
        }


        for(int i=0;i<numOfStones;i++){
            System.out.println(gemArray[i]);
        }
        in.close();
    }


    public static void main(String[] args) throws Exception {
        GemStones check = new GemStones();
        check.solve();


    }

}